get rid of the rem oil and WD40. try miltec-1 or fp10. a buddy has contant problems with kent 1-1/8 loads, he since switched to 1.25 oz and haven't had a single jam up.
corrision x is great for outside, but man its too thick for the inside. i put some grease ONLY on the rails and then use a light coat of oil on the rest of the action. also check yoru recoil tube spring, it could be rust up and dirty.
hope this helps.